BATTERY

摘要

A battery (100) provided by the invention includes an electrode assembly (30) having a current collector forming a positive electrode and a current collector forming a negative electrode; and a flat terminal (10a, 10b) joined to each current collector. The flat terminal (10a, 10b) has a flat portion (12) including a joint area (11) joined to the corresponding the current collector, and the flat terminal has a first curved portion (14) that is formed away from the joint area along the longitudinal direction (13) of the flat terminal.